A lot of people have claimed that merging their account with Battle.net has caused it to be hacked, but in reality it has not really, what has been happening, most commonly is that your computer had a keylogger on it prior to the merger, but with the "Remember Account Name" option on the login screen, you haven't had to type in your account name, while your password has been keylogged upon typing it in, but once you merge your account, you have to enter your e-mail as your account name, or however you have done it. That is when your account is stolen, since the keylogger already had your account password, but not the actual account name. Scan your computer! We had one of our ret paladins hacked three times in 10 days from this, and he had to be givin a new battle.net account due to his stupidity.